Well I got a problem. I had let my car sit for 3 weeks without drinving it. Then when I drove it next I found that when I drove it hard and the REVS were in the upper RPMS and I started to slow down a cloud of grey smoke would come out of my exhaust. It smells like burning oil. Then I checked the oil, and the level was 50% too high. So we drained some oil, but it was still occuring. I took it back to toyota, who had origianlly put too much oil in and had them change the oil completely. The smoke does not come out nearly as often, but if I am revving the car up say around 4,000-4,500 RPMS and then let off the gas and begin to break, the smoke will begin to come out of the exhaust again. Does anyone know what is wrong? Could it be my turbo seals, the car only has 37,000 miles on it? Thanks for any help guys.